Register control system for a printing press.

摘要

Optical scanners (18, 19) mount to a press (1 to 8) and provide information to a register control system (15, 16, 17, 20) which automatically maintains color-to-color register. The same information is processed to provide signals to a scanner interface circuit (17) which controls the position of the optical scanners (18, 19) to insure that they track the register patterns on the moving web (6).